E6700 Overclocked and now unable to turn on

[wolfpack15]

This is my first time overclocking a computer and I need help getting it to turn on again. I read and followed the overclocking guide at the top of the message board. The last thing I did with the CPU was run it @ 3.2Ghz.

Ran the Prime95 test for an hour without any errors. So after that I decided to attempt messing with the timing of my memory.

This were the exact steps:
- go from 5-5-5-15 @1066 to 4-4-4-12 @800 (i wanted to bring it closer to 1:1 ratio)
- ran Prime95 and failed within 5 secs
- changed BIOS voltage setting from AUTO to 2.2 (stock setting according to crucial's website)
- ran Prime95 and failed within 5 secs
- attempted to restarted the computer and go into bios...but wouldn't turn on monitor so I shut it off manually and attempted to start it up again but wouldn't turn on the monitor still
- shut off computer and unplugg AC power cord waited 10 sec, plugged everything back in. It turns on, I go to BIOS and changed the voltage back to AUTO
- BIOS does its restart but again it failed to turn on monitor. Again, I shut if off manually, unplugg everything, wait 10 sec, plug everthing back and still nothing.
All the fans and lights turn on but monitor doesn't. I also noticed that my NUM locks LED and mouse's optical light won't turn on. So then I
- reset the cmos following the instruction in the manual. Attempted to restart and still getting nothing.(attempted this x2)

Monitor won't turn on, keyboard and mouse aren't turning on either. Also I unplugged everything except Video Card, Motherboard with CPU and RAM... attempted to start still nothing.

My PSU is acting funny. When I rapidly turn switch on-off (1-0), I hear some kind of static electrical noise. Sometime LED on motherboard always stays on (regardless of what the switch is on, 1 or 0). Sometime on is 0 and off is 1. Reverse of what it should be.

I tried new PSU from my other computer and new video card as well. My monitor still won't turn on.

Any other suggestions as to what it could be? CPU? RAM?

Any help would be greatly appreciated and I apologize for the long post.

specs for the computer
Intel E6700
Crucial 2GB PC8500
Asus P5K Deluxe
ATI HD2900XT
OCZ 700W PSU

 

[myocardia]

You just need to reset your BIOS. And no, I didn't say attempt to reset your BIOS. Here's how a BIOS is reset:

1) Unplug power supply
2) Hold in case power button for at least 30 seconds to discharge capacitors, but longer is always better
3) Remove motherboard's battery
4) Move CMOS reset jumper to the shorted position
5) Wait at least 20-30 minutes
6) Start at #4, and work your way back up, in ascending order

If that fails, you didn't wait long enough at step 5.

 

[wolfpack15]

Thanks myocardia. Sorry it took me a while to respond. I was on vacation.

Anyway, that didn't work. I waited more than 2 hours before giving another attempt. Monitor is still not turning on. Computer turns on but monitor is still not turning on. The only constant has been memory, motherboard and cpu. I've even put in another video card and attempted but monitor doesn't turn on even then. Like I said in earlier post, I've also tried another PSU.

Please let me know if anyone has any other suggestions.

Thank you!

 

[BlueAcolyte]

fried mobo? since your video card and PSU both connect into it...

 

[GuitarDaddy]

Sounds like CPU is dead or not making proper contact in the socket.

I had similar symptoms on a P5B-E when I over tightened the backplate on a huge HSF, warping the board enough that the CPU wasn't making contact. Took me a while to figure that one out, swapped ram/video/ps. Finally decided to check and remount the CPU and noticed when I pulled the board out of the case it was slightly bowed under the pressure of the HSF/backplate.

 

[BonzaiDuck]

Can't be sure, nor would you do well to rule out other things, but this was the same symptom I had when I burned out one of my Crucial Ballistix modules.

Too many people here, including me, have been running their Crucials at 2.2V -- the recommended maximum. But "set" voltages are not always going to correspond to "monitored" or reported values, nor will either correspond to "real" voltages as measured by a multi-tester.

Pull one memory module at a time and see if you have one that is good, one that is bad. That might confirm my suspicions.

Otherwise, there are several other possibilities, but you need to begin somewhere. . . .

 

[myocardia]

Originally posted by: BonzaiDuck
Can't be sure, nor would you do well to rule out other things, but this was the same symptom I had when I burned out one of my Crucial Ballistix modules.

Too many people here, including me, have been running their Crucials at 2.2V -- the recommended maximum. But "set" voltages are not always going to correspond to "monitored" or reported values, nor will either correspond to "real" voltages as measured by a multi-tester.

Pull one memory module at a time and see if you have one that is good, one that is bad. That might confirm my suspicions.

Otherwise, there are several other possibilities, but you need to begin somewhere. . . .

That's what I was going to say, but Bonzai beat me to it. Memory is way more likely to fail than a motherboard, assuming you don't kill the motherboard with ESD. It's also the easiest to troubleshoot, since you can try each stick separately, before having to buy a new product, since it's extremely unlikely that both sticks would die at the same time, although anything is possible when it comes to computers.

 

[wolfpack15]

I appreciate the advice. I am currently waiting on my PSU. I will post back as soon as I get a chance.

 

[telefanatic]

Same exact problem here man, i build my sis a pc but im not getting nothing from the monitor (i tried two monitors) i have also tried a different PSU since i got couple laying around and i also tried two different video cards and still nothing ? As for the ram i checked it with my other computer and its working properly so my guess the mobo is dead since the pc turns on and everything is working but no signal to the monitor. Im getting a new mobo in couple of hours let you know how everything turns out.

Pc's specs are TT Soprano case, AMD 5200+ , M2N E Sli mobo, 2 gig Gskill ram and 500W Thermaltake PSU with a 7600GT since she doesnt play games i think this will be fine for her.

 

[wolfpack15]

So finally I got all my components back. Have a new cpu, and got my RAM and Motherboard checked/replaced through RMA department. I am up and running almost completely. My computer just didn't feel as fast as previously so I opened up CPU-Z and ran SuperPI (I haven't made any changes to bios or anything). According to CPU-Z even under load the core speed never reaches higher then 1.6 GHz. My multiplier never goes higher then 6.

I have a E6700 which is suppose to be running at 2.66Ghz with x10 multiplier (266FSB). Instead is staying at 1.6GHz with x6 multiplier (266FSB) at all times. Does anyone have an idea as to what is could be. I did check the bios and the settings look allright to me.

 

[wolfpack15]

Sorry I don't have a new CPU... it is the same one i had before computer died

 

[betasub]

Originally posted by: wolfpack15
I have a E6700 which is suppose to be running at 2.66Ghz with x10 multiplier (266FSB). Instead is staying at 1.6GHz with x6 multiplier (266FSB) at all times. Does anyone have an idea as to what is could be. I did check the bios and the settings look allright to me.

Probably the same problem as many posts on this forum. Forgive me if the details aren't exact, I'm paraphrasing: Intel's SpeedStep power saving drops your multiplier/voltage at low CPU usage - it's a power saving feature and can be useful. If you put your CPU under enough stress, e.g. Orthos or SNM, you'll force it into its high power state. Switch off EIST in BIOS if you really have to run all the time at full multiplier/voltage.

(Edit for grammar)

 

[wolfpack15]

I tried my roomates CPU (E6850) in my setup and it performed like it should of. Underload it cranked up to 3GHz like it should have. Then I put my CPU (E6700) in his setup, and the computer refuses to even start up all the way. Makes it to Windows logo and then turns off. Same thing as when placed in my setup, except mine barely makes it past POSTing before shutting off.

 

[Mondoman]

Sounds like you damaged your CPU. When you were doing the OCing, did you boost the CPU voltage above the stock/auto value?

PS - For example in your first post you said you "changed BIOS voltage setting from AUTO to 2.2..." -- *which* voltage were you changing there?

 

[wolfpack15]

Yeah it has to be a damaged CPU. The AUTO to 2.2 was DRAM voltage. The VCORE in BIOS was set to 1.4V and CPUZ read ~1.375